Watchman s time-detector



(No Model.) 2 sheets-sheen 1.

J. E. lrlTLRBOXl WATGEMANS TIME DETECTOR.

, Patented Feb. 19, 1884. .Q'f-

No. 293,684. Fb

Fay. 2. Q

N. PErERS. Fhawmhogmpnnr. wnshmgmn. D. C.

(No Model.) 2 Sheets-Sheet 2.

J. E. TARBOX.

WATGHMANS TIME DETBGTUR.

No. 293,684. Patented Feb. 19.1884.

N. PETERS, Fhammnegmpmr. wasnmgmn D4 c UNITED STATES PATENT Garten.,

JAMES EDVIN TARBOX, OF LYNN, MASSL'XCHUSETTS.

WATCH MANS 'Ti Ni E-DETECTGP.

SPECFCATION formmg part of Letters Patent No. 293,684, dated February 19, 1884.

(No model.)

To a/ZZ whom, t may concern:

Be it known that l, J Mns EDWIN T inox, of Lynn, in the county of Essex, of the Commonwealth ot' Massachusetts, have invented a new and useful improvement in registers for indicating the time or times when a watchman may visit a room or a mill, my apparatus, or parts ot' it, being also useful for various other purposes, and I do hereby declare the same to be described in the following specieation and represented in the accompanying drawings, of which- Figure lis a top view of it without its cover. Fig. 2 is a longitudinal section of it. Fig. 3 is a transverse section of it. Fig. et is a top view, Fig. 5 an end elevation, and Fig. 6 a transverse section, ot' the mechanism used for ,depressing the lever of the marker-supporting disk. Fig. 'T is a side View, and Fig. S a vertical section, of the marker. Fig. 9 is a side view ofthe wheel O,hereinafter described.

The apparatus is to produce on a tablet or piece of paper markings, to denote the times when a person or watchman may have attended to a duty assigned to him to perform, for at each of such times being obliged to effect by the mechanism a downward movement of the marker, to cause it to mark the tablet or sheet of paper.

In the drawings, A denotes the box or case of the apparatus, such box having within it a partition, a, dividing it above and parallel to its bottom. Vithin the space b,beneath the said partition, is a clock-movement, B, whose minute-hand arbor is shown at c as projecting up through and above the partition, and a metallic disk, C, arranged as represented. This disk rests on an annulus, C, supported by a lever, D, so as to be movable vertically with the saidlever, toward and away from a sheetE, of paper placed on the top of the partition. On this sheet oi' paper a circle is drawn,and. divided by radial lines into twelve equal sectors, the circle being concentric with the disk G. An arm, d, pivoted to the arbor c at its upper part, so as to be capable of being turned vertically, has journaled on it a screw, D', provided with a wheel, j', to rest at its periphery upon the disk C. As the arbor is revolved by the clock-movement, such arbor carries around with it the screw, which at the same time is revolved by the wheel j", which in turn is revolved by running upon the disk. Screwed loosely upon the screw is the pendulous or gravitating marker E,whieh has a small arm, g, extending from it, as represented. This marker is a sectorot' an eilipse in form, and is to have within it a chamber for holding ink, and such chamber has an opening at the middleof the are of the sector, through which opening the ink can pass, a wick or stuffing of such nature being arranged in the opening i'or the purpose ot' absorbing the ink and preventing it from improperly escaping. On the marker being depressed upon the paper, a dot or mark will be made thereon by it, the said marker; but if the marker is kept in contact with the paper, such marker will turn on the screw, so as to arrest the marking of the paper. The marker, by its weight when ott the paper, hangs on the screw and does not revolve upon it. The screw revolves within the marker, however, and thereby causes the marker, while being carried with t-he screw around in the circle on the pa; per, to gradually approach the center ot` such circle. From this it will be seen that the marker in its traverse in the circle moves entirely around it every hour, and in a helix, and it should be twelve hours in passing from the circumference ol" the circle to or near to that of the disk C. One of the radial lines of the circle, in the part oi' it between the disk and the circumference of such circle, is divided into twelve equal parts, and numbered from l to l2. as represented, to indicate the hours of the traverse ot' the marker.

There is to the leverD a spring, 7L, for i'orcing it upward after each depression of it. From the above it will be seen that if, at stated times during the twelve hours, a person may be required to depress the said lever, amark on the paper will be made every time he may so move the lever, the times when the marks may have been so produced being indicated by their positions on the paper. Hthin the case is a mechanism for depressing the lever. This mechanism may be thus described: A shaft, I, supported in suitable standards, K K, so as to be able to freely revolve therein, has fixed on IOO Y the shaft will be caused at each pull to make of a person to pull these wires successively during a given period of time-as one hour, for instance-so long as he does this marks 'will be regularly made on the paper; but should he fail to pull any one of these wires at it, at one end of it, a toothed wheel, L, to act on the lever D. This wheel has eight teeth. There is also xed on the shaft a ratchetwheel, M, having eight teeth. A pawl, N, pivoted to one of the standards, engages with the ratchet-wheel. Furthermore, there is fixed on the shaft four toothed wheels, O, O, O2, and O3, each having two teeth, arranged and formed as shown in Eig. 9. These wheels are alike in shape, and each has fulcrumed on the shaft one of four levers, P, P, P2, and P3. Each of these levers is provided with a springpawl, 71 to bear against the periphery of its wheel. To the lower end of each lever one end of a spiral spring, S, is fastened, the other end of such spring being secured to the bottom of the case. Tires E, R', R2, and R3 eX- tend from the levers through one side of the case, and where outside of the case are bent in circles or provided with knobs, to enable them (the said wires) to be pulled to move their levers, to cause the pawls thereof to turn thc wheels O, O', O2, and O. These wheels are so arranged on their shaft that, on the wires R, R', El, and It being pulled in succession,

one-eighth of a revolution. If it is the duty the proper time, no mark will be made by the marker, and, consequently, by the absence of such mark, it will be shown that he did not perform his. duty. So, were he to pull the wire out of time, there would be no mark made. He must pull the wires in regular rotation in order for marks to be made.

There may be a greater or less number of the wheels of the series O, O', &c., the number of operative levers with their springs and pawls and pulling-wires being varied accord'- ingly.

I claiml. The register, substantially as described,

consisting of the time-piece movement, the lever and its spring, the tablet or sheet, marked as explained, the disk, the arm, the screw and its wheel, and the marker, all being arranged essentially and to operate as set forth.

2. The combination, with the register, substantially as described, of the mechanism, essentially as explained, for depressing the lever ofrsuch register, such mechanism consisting of the shaft l, its toothed wheel L, series of toothed wheels 0, O, O2, and O3, and their series of operative pawls and levers, provided with springs and pulling-wires, all being as rep-resented.

JAMES EDVIN TARBOX.

lVitn esses:

E. H. EDDY, E. B. Pimm. 

